Washington, D.C. 20549


Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB Number: 3235-0104
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1. Name and Address of Reporting Person*

(Last) (First) (Middle)


(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
3. Issuer Name and Ticker or Trading Symbol
Esperion Therapeutics, Inc. [ ESPR ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director X 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Series A Preferred Stock (1) (1) Common Stock 1,683,967 (1) I By Longitude Venture Partners, L.P.(2)
Series A Preferred Stock (1) (1) Common Stock 33,753 (1) I By Longitude Capital Associates, L.P.(2)
Explanation of Responses:
1. The Series A Preferred Stock is convertible into Common Stock on a 6.986-for-1 basis at any time at the holder's election, and automatically upon the closing of the Issuer's initial public offering, and has no expiration date.
2. Mr. Enright is a managing member of Longitude Capital Partners, LLC ("Longitude Capital"). Longitude Capital, as general partner of each of Longitude Venture Partners, L.P. ("LVP") and Longitude Capital Associates, L.P. ("LCA"), has the power to vote and dispose of securities held by each of them and may be deemed to have beneficial ownership of the shares owned by LVP and LCA. Mr. Enright disclaims beneficial ownership of the shares held by the Longitude Capital entities, except to the extent of his pecuniary interest therein.
/s/ Richard B. Bartram, by power of attorney 06/25/2013
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
                      POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby authorizes
each of Tim M. Mayleben, Richard B. Bartram, and Troy A. Ignelzi,
of Esperion Therapeutics, Inc., a Delaware corporation (the
"Company"), individually to execute for and on behalf of the
undersigned, in the undersigned's capacity as an Officer and/or
Director of the Company, Forms 3, 4 and 5, and any amendments
thereto, and cause such form(s) to be filed with the United States
Securities and Exchange Commission pursuant to Section 16(a) of
the Securities Act of 1934, relating to the undersigned's
beneficial ownership of securities in the Company. The undersigned
hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the exercise of any
of the rights and powers herein granted, as fully to all intents
and purposes as the undersigned might or could do if personally
present, with full power of substitution or revocation, hereby
ratifying and confirming all such attorneys-in-fact, or such
attorneys-in-facts' substitute or substitutes, shall lawfully do
or cause to be done by virtue of this power of attorney and the
rights and powers herein granted. The undersigned acknowledges
that the foregoing attorneys-in-fact, in serving in such
capacities at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's
responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until
the earliest of: (1) the undersigned is no longer required to file
Forms 3, 4 and 5 with respect to the undersigned's holdings of,
and transactions in, securities issued by the Company; (2) this
Power of Attorney is revoked by the undersigned in a signed
writing delivered to the foregoing attorneys-in-fact; or (3) as to
a specific attorney-in-fact, the employment of such
attorney-in-fact with the Company is terminated.

IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 24th day of June, 2013.

/s/ Patrick Enright
  (Sign Name)
Patrick Enright
  (Type Name)